1. Flat focusing mirrors
- Author
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Crina Cojocaru, Ramutis Drazdys, Kestutis Staliunas, Martynas Peckus, J. Trull, Yu-Chieh Cheng, Simonas Kičas, Ramon Vilaseca, Universitat Politècnica de Catalunya. Departament de Física, and Universitat Politècnica de Catalunya. DONLL - Dinàmica no Lineal, Òptica no Lineal i Làsers
- Subjects
Physics::Optics ,Reflection ,Dielectric ,Miralls ,Optics ,Chirp ,Dispersion (optics) ,Reflection (Optics) ,Reflexió (Òptica) ,Invariant (mathematics) ,Reflection (computer graphics) ,Gratings ,Focusing ,Photonic crystal ,Physics ,Física [Àrees temàtiques de la UPC] ,business.industry ,Dispersió (Òptica) ,Dispersion ,Optical axis ,Mirrors ,Feixos de làser ,Optoelectronics ,Focus (optics) ,business ,Laser beams - Abstract
We present the flat focusing mirror - the dielectric mirrors capable to focus and image the narrow beams in reflections. The mirrors are flat, and transversally invariant, i.e. have no optical axis. We consider two different configurations of such mirrors: 1) Bragg-like mirrors, consisting of structure of specially designed dielectric layers; 2) periodically modulated surface on a subwavelength scale. We also discuss the combined case - the longitudinally chirped photonic crystals.
- Published
- 2015